class Phone:
    IMEI = None  # 序列号
    producer = 'JAG'  # 厂商

    def call_by_4g(self):
        print(F'Phone_4g通话_{self.producer}')


class Phone2026(Phone):
    face_id = '80088'  # 面部识别ID

    def call_by_5g(self):
        print(F'Phone2026_5g通话_{self.producer}')


phone = Phone2026()
phone.call_by_4g()
phone.call_by_5g()
print(phone.producer)
print(phone.face_id)
